AT3 Tactical AR-9 Barrel - 8.3" - 9mm - Straight Profile
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- 90-day no-hassle returns policy
- Backed by the AT3 Lifetime Warranty! what it covers
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Product description
Precision Pistol Caliber Performance in a Compact Package
Bring the versatility of 9mm to your AR build with this straight profile 8.3″ barrel from AT3™. Crafted from premium 4150 CrMoV steel per MIL-B-11595E specs and protected by a rugged black nitride finish.
The straight profile adds a balanced weight while maintaining accuracy with 9mm ammunition. At just 8.3″ long with 1/2×28 muzzle threads, it’s an ultra-compact option for dedicated 9mm AR uppers or PDW-style pistol builds.
Specifications
- Brand: AT3™
- Model: Straight 8.3″ 9mm Barrel
- MPN: AT3-9MM-8.3-28
- Material: 4150 CrMoV Steel (Mil-B-11595E)
- Finish: Black Nitride
- Length: 8.3″
- Twist Rate: 1/10
- Muzzle Threads: 1/2×28
Customer reviews 1
Verified buyerQuestions & Answers 1
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Will your AT3-9MM-8.3-28 barrel fit the CMMG MK17 Bansee 9mm?
Bobby Skaggs · May 27, 2025AT3 Support Team — The AT3-9MM-8.3-28 barrel will not fit the CMMG MK17 BANSHEE 9mm
Warranty & returns
Backed by the AT3 Lifetime Warranty!
All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.
This includes AT3 Red Dot Sights, Handguards, Iron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.
In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.
If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.
If your product is in need of warranty service, please contact AT3 Tactical to start the process
Our contact info is available here. To expedite processing, please provide your order information and description of the defect.
Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.
